package com.atguigu.gmall.mq.config;

import org.springframework.amqp.core.*;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

/**
 * @author mgx
 * @create 2024-09-03 21:02
 * @Description
 */
@Configuration
public class DeadLetterMqConfig {

    // 声明一些变量
    public static final String exchange_dead = "exchange.dead";
    public static final String routing_dead_1 = "routing.dead.1";
    public static final String routing_dead_2 = "routing.dead.2";
    public static final String queue_dead_1 = "queue.dead.1";
    public static final String queue_dead_2 = "queue.dead.2";

    /**
     * 交换机
     * @return
     */
    @Bean
    public Exchange exchange() {
        return new DirectExchange(exchange_dead, true, false, null);
    }

    /**
     * 正常队列
     * @return
     */
    @Bean
    public Queue queue1() {
        Map<String, Object> map = new HashMap<>();
        // 参数绑定 此处的key 固定值，不能随意写
        map.put("x-dead-letter-exchange",exchange_dead);
        map.put("x-dead-letter-routing-key",routing_dead_2);
        // 设置延迟时间
        map.put("x-message-ttl", 10 * 1000);
        // 队列名称，是否持久化，是否独享、排外的【true:只可以在本次连接中访问】，是否自动删除，队列的其他属性参数
        return new Queue(queue_dead_1, true, false, false, map);
    }


    /**
     * 死信队列
     * @return
     */
    @Bean
    public Queue queue2() {
        return new Queue(queue_dead_2, true, false, false, null);
    }


    @Bean
    public Binding binding1(){
        // 将队列一 通过routing_dead_1 key 绑定到exchange_dead 交换机上
        return BindingBuilder.bind(queue1()).to(exchange()).with(routing_dead_1).noargs();
    }

    @Bean
    public Binding binding2() {
        return BindingBuilder.bind(queue2()).to(exchange()).with(routing_dead_2).noargs();
    }
}
